A super powered bitch. Think of froob compared to a n00b. Alpha Cunts are elite cunts. First used in the book World War Z by Max Brooks.

(As used in World War Z)
Q: "And then? When the outbreaks became more serious and the press finally reported hat there was no wonder drug?"
A: "Pre-fucking-cisely! That's the alpha cunt who should be shot, what's her name, who first broke that story!"